both president obama and vice president joe biden officially sworn into office today. it's the first of two inaugurations. tory dunnan has the latest on today's ceremonial event, and a preview for tomorrow. >> he starts as the second term as the 44th president of the united states this was administered by john roberts and took place on a sunday. it is january 20th. it is a constitutional mandate the swearing in the took just a couple of hours after joe biden was also sworn in. >> congratulations. >> thank-you. (cheers & applause) >> reporter: on monday, he will have another cheering and. he will use it two different bibles. one is from martin luther king and the other is from abraham lincoln. and the president will deliver the first speech of his second term. he could choose to lay out his challenges. the looming debt ceiling and passing a gun control. >> he is going to talk about our political system does not settle all of our differences >> after the official business. it will party at the inaugural ball. in washington, tory dunnin. >> and you'll be able to watch the